Leather-shredder.



No. 819,862. PATEN-TED MAY 8, 1906.

O. M. CUTLER.

LEATHER SHREDDER.

APPLICATION FILED JAN.2B,1902. RENEWED MAR. 22, 1904.

3 SHEETS-SHEET 1.

FIG-1| PATENTED MAY 8, 1906.

0. M. CUTLER. LEATHER SHREDDER. APPLICATION FILED JAN. 28, 1902. RENEWED MAR. 22, 1904.

3 SHEETS-SHEET 2.

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llllllll PATENTED MAY 8, 1906.

*b. CUTLER. LEATHERS HREDDER. APPLICATION FILED JAN. 28, ldzhmEnswnn'uAx. 22, 1904.

3 SHEETS-SHEET 3.

E FUR-I 5 E E 5 E UNITED STATES PATENT OFFICE.

oris MJCUTLER, oF WAKEFIELD, MASSACHUSETTS, ASSIGNOR To FIBERED LEATHER MANUFACTURING COMPANY, A CORPORA- TION or MAINE.

LEATHER-SHREDDER- Specification of Letters Patent.

:atented May 8, 1906.

Application filed January 28, 1902. Renewed March 22, 1904:. Serial No. 199,429.

'[0 all whom it may concern;

Be it ,known that I, OTIS M. CUTLER, a citizen of the Un ted States, residing at Wakefield, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Leather-Shredders; and I do hereby declare the following to be a full, clear, and exact description of the inventon, such as w.ll enable others sk.lled in the art to which it appertains to make and use the same.-

This inventon relates to processes of shredd ng leather and to apparatus therefor; and it consists in the novel process for shredding scrap and other leather as well as in the novel construct on and combrnaton of parts hereinafter fully descr.bed and claimed. I

In the drawings, F. gure 1 is a side view of the machine. Fig. 2 is a front end view.

Fig. 3 is a longitudnal section through the shredding mechanism, drawn to a larger scale. Fig. 4 is a deta:l side v.ew, and Fig. 5 is an end view, of the shredding-cylinder. Figs. 6 and 7 are respectively a s de view and an end view of the fingers. F..g. '8 is a long.'.tudinal section'through the shredding-cylinder.

A is the frame of the machine, rovided with a table B at its upper part for t e scrapleather to rest on. Two openjngs b and bare formed in the table B.

C is a conveyer which works in the o ening b and has its upper surface arrange flush with the top of the table. This conveyer consists of a broad endless belt which passes over two rollers c and c, which are journaled in the frame A. The front roller 0 is the driving-roller, and it is revolved by any approved drivng devces.

D is a smooth feed-roll, which is ournaled in the frame A over the roller 0 and revolved in the direction of the arrow in F- d 3 by'any approved drlvng mechanism,

E and E are two corrugated feed and consolidating rollers which are journaled in the frame A behind the rollers D and c, and which are revolved by any approved driving mechanism. The lower roller E projects upwardly in the opening I) of the table, so that its eriphery is substantially in the plane of t e top of the table.

F is a shredding-cylinder conslstin of awise of the table in guides g. The shredd ngcylinder and the upper feed-rollers are provided with suitable casings H and h, the casing H being secured to the saddle G and the casing h to the frame A.

I represents fin ers arranged in a series and secured to the'sa dle G. These fingers roject between the saws on the lower side 0 the shaft, and they have notches i at their free ends. The bottoms of the notches are level with the table-top, and they and the upwardly-projectirig portions of the fingers prevent the scraps of leather from being forced between the saws without being shredded by the saw-teeth.

J is a hopper or chute for the shredded leather arranged under the shredding-cylinder. The shredding-cylinder is recrprocated crosswise of the machine by means of a cam K and a lever k. The lever 7c is pivoted on a ame A, and its'upper end is pivoted to the saddle G by a pin m. "The lower end'of the lever has a shoe m, which engages with the cam. The cam K is secured on a shaft N, WTLCh lS journaled in the frame A.

P is the driving-shaft of the machine, which is revolved by a belt-pulley P or in any other,

approved manner. A toothed wheel p is secured on the driving-shaft P and gears into a toothed pinion p on the shaft of the lower feed-roll EC The pinion p also cars into a toothed pinion g on the shaft 0 the upper feed-roller E. has a toothed pinion gsecured on it, and g is an idle toothed wheel which gears into the two pinions g, so that the upper feed-rollers revolve simultaneously and in the same direction. The toothed wheel 1) also gears into a toothed pinion s, secured on the cam-shaft N. 9 The shreddin -cylinder is revolved by means of a belt-pu ley t, secured on its shaft, a belt-pulley s, secured on theshaft N, and a belt t, whichpasses over the pulleys s ,and t. The conveyer-roller c is revolved by means of a belt-pulley v, secured on its shaft, a belt pulley w, secured on the cam-shaft N, and'a belt w, which passes over the pulleys 'v and w. Other equivalent driving mechanism may,

The upper feed-roll D also inis, supported by a cross-ban a of they lCO however, be used for imparting motion to the various parts ofthe machine in carrying out this invention.

The scraps of leather are-placed on the conveyer, which forms a portion of the feed-ta ble. This conveyer and the smooth feedroll feed the scraps of leather over the surface of the table into engagement with the corrugated feed-rollers. The scraps are consolidated by the corrugated feed-rollers and are pressed by them against the saws of the shredding-cylinder in the notches of the fingers. The consolidation of the scra s by-the corrugated feed-rollers into a sort 0 cake enables the scraps to be presented to the saws so that every portion of them is shredded up as the shredding cylinder is reciprocated back and forth and revolved. The shredded leather falls into the hopper or chute and is carried away in suitable receptacles placed under the chute to receive it.

The shredded leather is used in the arts for various urposes, but chiefly for making sole and heel plates for shoes, being ,mixed with other suitable ingredients and formed into slabs or sheets by a suitable process. It may be employed wherever a fabric or composition may be employed.

What I claim is 1. In a shredding-machine, the combination, with a shreddin- -'cylinder, of a flat table arranged in front 0 the cylinder and provided with two openings, an endless conveyerbelt provided with end rollers and having its 7 upper portionworking in one of the said openmgs, a pair of feed and consolidating rollers arranged between the said conveyer and shredding-cylinder, the lower roller of the said pair being arranged in the other said opening of the table, a feed-roll arranged over the rear end roller of the said conveyer,

, and driving mechanism for the said conveyer,

rollers, roll and cylinder, substantially as set forth. I Y

\2. In a shredding-machine, the combinatidn, with feeding mechanism for thematerial,

of a revoluble shredding-cylinder, and driving devices operating toreciprocate the said cylm der crosswise of the direction of the feed of the material, substantially as setforth.

3. In a shreddingmachine, the combination, with a table and feed mechanism for moving the material longitudinally of the table; of a revoluble shredding-cylinder, and driving devices operating to reciprocate the said cylinder crosswise of the table, substantially as set forth. p

4. In a shredding-machine, the combination, with feeding mechanism for the mate rial, of a frame supporting the said feeding mechanism and provided with guides arrangedcrosswise of the direction of the feed of the material, a' saddle slidable in the said guides, a shredding-cylinder journaled in the said saddle, a pivoted lever for reciprocating the said saddle, and a revoluble cam for operating the said lever, substantially as set forth.

5. In a shredding-machine, the combination, with feeding mechanism for the material, of a revolubleshredding-cylinder comprising a series of saws secured at short distances apart, a series of fingers arranged between the said saws, and driving devices op-. erating to reciprocate the said cylinder and saws crosswise of the direction of the feed of the material, substantially as set forth. 6. In a shredding-machine, the combination, with a table, and feed mechanism for moving the material over the table; of a revoluble shredding-cylinder comprising a series of saws secured at short distances apart, and a series offingers arranged between the said saws with their free ends adjacent to the edge of the said table and operating to hold the unshredded material in engagement with the saw-teeth, substantially as set forth.

7. In a shredding-machine, the combination, with a table, and feed mechanism for moving the-material over the table; of a saddle slidable crosswise of the table, driving mechanism for reciprocating the saddle, a revoluble shredding-cylinder journaled in the saddle and comprising a series of saws se cured at short distances apart, and a series of fingers secured to the said saddle and project-' ingbetween the said saws with their free ends adjacent to the edge of the said table and operating to hold the unshredded material in en agement with the saw teeth, substantia ly as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

OTIS M. CUTLER.

Witnesses:

ALICE J. \IVIU'RRAY, FRED. K. DAGGETT. 

